The gravitational force exerted by Earth is called "gravity." Gravity is a fundamental force that attracts two bodies toward each other, and in the case of Earth, it pulls objects toward its center. The strength of Earth's gravity gives weight to physical objects and influences various natural phenomena, such as the orbit of the Moon and the falling of apples from trees. The acceleration due to gravity at sea level is approximately 9.81 meters per second squared (m/s²). This force is essential for life, affecting everything from the movement of oceans to the biomechanics of living organisms.